This study explores the feasibility of transitioning the aviation sector to green hydrogen as part of efforts to achieve net-zero CO2 emissions by 2050. Emphasizing the role of Sustainable Aviation Fuels and direct use of hydrogen as fuel, the study examines the current state of German airport infrastructure and outlines the challenges associated with adopting hydrogen as an alternative fuel source. Despite optimistic projections, the lack of practical experience with hydrogen supply at German airports underscores the need for infrastructure development and research. Through a detailed analysis of airport organization, fuel supply infrastructure, and potential impacts on hydrogen supply, the study provides insights into the transformative potential of green hydrogen in aviation and identifies key areas for future research and development.